Marty Adkins over at Netcraftsmen recently found an interesting network diagnostic tool: Paris Traceroute. It can find multi-path routes through a network where one device is doing load balancing of some sort. I've not yet used it,but it looks pretty useful. The source code is available! The web site (see link above) has a nice description of how it works and how it is better than the traditional traceroute. Good thinking on the part of the project members!
-Terry
About tslattery
Terry Slattery, CCIE #1026, is a senior network engineer with decades of experience in the internetworking industry.
Prior to joining Chesapeake NetCraftsmen as a full time consultant, Terry was the founder and CTO of Netcordia, and inventor of NetMRI, a suite of network management products. Terry started Netcordia as a consulting company in 2000 and transitioned to a network management product company in 2003. During the consulting days, he used his network design and implementation skills to lead a team in the design and implementation of a high availability network at a brokerage clearing house. Terry is the former President and founder of Chesapeake Computer Consultants, Inc., a networking and computer systems training and consulting company. He co-invented and patented the vLab(tm) internet-based remote lab system. He is co-author of the McGraw Hill text Advanced IP Routing in Cisco Networks. Terry led the team that developed the current Cisco IOS user interface under contract to Cisco Systems. Terry is experienced in the design and installation of large TCP/IP based networks and is a successful network protocol instructor. He is the second Cisco Certified Internetworking Expert (CCIE) #1026 and the first outside of Cisco. He enjoys membership on the Vanderbilt University Engineering School’s Industrial Advisory Board and the IEEE.